Photo guide on creating custom EL-8 cables using Moon Audio Blue Dragon and EL-8 connectors. All DIY components, non-assembled.
Review #3 Goes Live! Burson Play Review
After what felt like forever, I have finally got the review into good enough shape to share most of it with you guys/gals! I hope you enjoy the review, I tried to keep it much shorter than the last one, coming in around 6500 words this time. I hope the structure of this review makes […]
Testing 500x Microscope out on 1000V Sprague (K631788-14) Capacitor (folded/rolled design)
Don’t see this very often, even in classes they didn’t have one of these that had cracked the wax. First two pictures are with a 50mm lens. I noticed the wax had broken in a circle around the end and if I could pull the end right off, the solder was already broken and […]
Complete Guide to Making I2S Cable from CAT6A & Connecting it to ES9038Pro DAC (Using Belden 1303E Catsnake™) Updated: 6/12/18
Note: You can open all images displayed on Hallman Labs in a larger view by right clicking and then using whatever your browser says to view the image. This should open a new tab with the image in full size. I started an article on making custom I2S cables, but I never published how […]
Update on Upcoming Burson Play Review
Overall I am extremely impressed with the Burson Audio v2.0 PCB Play, after doing a few small things I had a great result. The Play can do DSD128 with ease, something my FUN01 V1.1 needs I2S to accomplish. The Burson Audio Play is using I2S from the XMOS to the main DAC while I […]
Preview of Hardware Reviews in Progress with sAp-10 – Balanced Headphone Amp under $200 (also the Burson Play DAC/Amp)
Finally got a balanced (XLR in) headphone amp. 2.8 MHz is native DSD64 converted by DOP (DSD over PCM). This is a picture from my phone, but I wanted to get something for readers to see on the reviews in progress between this combo and the Burson Play DAC/Amp combo. I plan to focus more […]
Old Meets New: Kenwood’s C-2 “Basic” Pre-amp gets a Burson Audio V6-OPA Facelift!
Update 6/2/18: I completed the discrete op-amp modification after I got the replacement diodes. You need to replace Diodes 11, 12, 13, & 14 with 16V Zener diodes. If you fail to do this, your op-amps will be getting +18 and -18V (36V total). This is a pretty high voltage to use on op-amps, these […]
High Res Photos of My New Sprague Tel-Ohmike TO-6A
Update – May 15, 2018: I have almost finished restoring the bottom of the unit (where most of the components are) and expect to have it working in the next week or less! Update – May 12, 2018: Here is the Schematic with the parts labeled, this way you can easily see where you are […]
DSC1.Difference : Update on the DSD Dedicated No-DAC (DAC)!
I have been slowly working on this project behind the scenes, without posting about it much (aside from on ComputerAudiophile.com). This is a “discrete” delta-sigma digital to-analog converter (DAC) developed by Signalyst (although, this wasn’t made by them). Their goal was to be able to convert DSD signals (digital equivalent to SACD) into analog while […]
Hallman Labs Capacitor Analyzer : Sprague Tel-Ohmike TO-6A
After weeks/months of trying to get my Cornell Dubilier BF-50 cap analyzer to show what is expected for a good cap vs. a known bad cap, I reached out to Cornell Dubilier. Well Cornell Dubilier didn’t have any more information to offer me besides what I already knew from the BF-50 owner’s and service manuals. […]